I got the part number by searching this string, from another post, from barrie " Procedure to convert connectors for Euro headlights ". Part # is: 0065458028 -- same as for Cruise Control connection according to Tom Hanson at Caliber Motors. I have ordered and will post if I have any difficulties.
Aforementioned post also includes detailed instructions. Good enough to print!
1986 300E Anthracite + ECodes + MB Mileage Award